Thirds to john hunter and james hunter



(No Model.)

F. W. TUERK, Jr.

- FAN.

No. 477,614. Patented June 21, 1892.

INVENTDH YH: Norms Penas co., mam-mno., wAsmNaToN, n. c.

UNITED STATES PATENT OFFICE.

FREDERICK W'. TUERK, JR., .OF FULTON, NEW' YORK, ASSIGNOR OF TW()- TIIIRDS TO JOHN HUNTER AND JAMES HUNTER, OF SAME PLACE.

FAN.

SPECIFICATION forming part of Letters Patent No. 4??,614, dated J' une 21, 1892.

Application filed January Z4, 1890. Serial No. 337,953. (No model.)

To all whom t may concern:

Beit known that I, FREDERICK W. TUEEK,`

Jr., of Fulton, in the county of Oswego, in the State of New York, have invented new and useful Improvements in Fans, of which'the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

My invention relates to an improvement in 1o fans, and has for its object the production of a simple and effective device whereby the altitude of the fan-blades is readily adjusted for varying the agitation of the air; and to this end the invention consists, essentially, in

r 5 a revoluble shaft, fau-blades supported on said shaft, projections or pins provided on the adjacent extremities ot' the fan-blades, and amovable head having openings therethrough in a line also substantially at right zo angles to the longitudinal axes of the blades for registering with said projections or pins, said openings having countersunk extremities, whereby cramping of the pins is prevented when the head is moved for adjusting z5 said blades.

The invention also consists in the detail construction and arrangement of the parts, all as hereinafter more particularly described, and pointed out in the claims. Y

3o In describing this invention reference is had to the accompanying drawings, forming a part of the specication, in which like letters indicate corresponding parts in all the views.

Figure l represents an elevation of my in- 3 5 vention, illustrating the relative construction and arrangement of its parts. Fig. 2 is a detail view illustrating the connection between the adjacent extremities of the fan-blades for axially rotating them; and Fig. 3 is a sectional 4o view taken on line y y, Fig. 2.

. This invention relates to a simple construction ot' means for adjusting the altitude of the fan-blades,` somewhat similar to that shown in my previous patents, Nos. 420,024 and 423,839, dated, respectively, January l and March 18, 1890.

In the Patent No. 420,024 l have shown the adjacent extremities of the fan-blades as provided with toothed disks or gear-wheels mesh- 5o ing with an interposed head having rackt ing the speed of rotation of the fan.

teeth `on its vfaces adjacent to said wheels for meshing therewith, and in the aforesaid Patent No. 423,830 I have shown the inner extremities of the fan-blades as provided with laterally-extending arms, a head movable between said extremities, and independentlymoving supports carried by said head. In the practical use ot' the device shown in my former Patent No. 423,839 I have discovered that the in dependently-moving supports upon 6o the adjacent interposed head are extremely liable to bind on the head and bend the arm engaged therewith and provided on the adjacent end of the fan-blade. By my present invention I have sought to obviate this difticulty by dispensing with the independentlymoving supports and forming the head with openings therethrough arranged in a line substantially at right angles to the longitudinal axes of the fan-blades and formed with coun- 7o tersunk or enlarged extremities, whereby the head is permitted to move -up and down and rock the fan-blades through the medium ot` the arms secured thereto and engaged with said openings without the slightest liability of bending said arms. Moreover, this latter construction is much more simple, durable, and economical than that set forth in said Patent 180.423,83), asis evident to one skilled in the art. 8o

By this adjuster the fan-blades are axially rotated for varying their altitude and regulating the agitation of the air Without vary- 'Ihe fansuppo'rting bracket A, which may be of suit- S5 able form, size, and construction,is here illustrated as composed ot the lower tubularshaped portion or shell A and the bars or arms A2, secured at their lower extremities by set-screws or other means a tolugs a upon 9o the shell Av and mounted at their opposite extremities in brackets A3, secured to any suitable support, as the ceiling of a room, whereby the fan may hang pendent. This construction of bracket is very cheaply and economically produced, effective and durable in operation, and pleasing in appearance, thereby producing an extremely desirable article at a minimum cost of expense.

C represents the fau-rotating shaft, which roo is supported by the bracket A and preferably by the tubular portion A', being driven by any suitable kind of motive power. As illustrated, the shaft is driven by an electric motor F, which is mounted on supports G, projecting from the rods A2, and is incased within a movable shell II, to which is secured a cord 71,', which passes overa pulley h3, journaledin a bracket 71,2, and is secured to a counter-balance h4. The operation of this motor forms no part of my invention, and hence it is unnecessary tofurther illustrate or describe the same, it being understood that any kind of motive power maybe used to rotatethe shaft C.

As shown, the shaft C does not extend entirely intov the motor, but is connected to a spindle e, depending from the motor, by a collar C, secured by a pin c"l to said spindle. It is evident, however, that,if desired, the shaft may be run continuous instead of being subdivided, and that this divided construction of the shaft forms no part of my present invention.A

As illustrated in the drawings, the fanblades I are arranged with their axes disposed in parallel planes at one side of each other and are journaled in a bracket K, preferably of the form described in my aforesaid patents, which bracket is firmly secured to the shaft C, in order that it may be rotated thereby. In the central portion of the bracket is an open space 7c, into which project the inner extremitiest' of the fan-blade spindles I. Formed or provided upon these extremites are the projections or lugs L, which extend toward each other in planes at substantially right. angles to the longitudinal axes of the blades and enter openings m on opposite sides of the center of a sliding head M, which extend through said head in planes at substantially right angles to the longitudinal axes of the blades. This sliding head M is formed with a depending guide-rod m', sliding or guided in the hub 7c of the bracket K. The opposite faces or extremities m2 of these openings m are countersunk, as best illustrated in Fig. Vt), thereby enabling the said head without cramping the arms L to be readily forced upward or downward with its openings considerably above or below the `axes of the fan-blades. Secured to the lower extremityof the guide-rod m is a suitable handpiece m3,l1exeillust1ated as an oil-cup loosely mounted on said extremity. The fan-blades and their axially-rotating mechanism are preferably so arranged that when the said oil-cup is pulled downward the air displaced by the fan-blades I is forced downward, and when desired to force the air upward, as set forth in my previous patents, the said oil-cup is forced upward, effecting the desired result. This construction of arms L and sliding head M for axially rotating the fan-blades is very simple and effective, since the parts are so proportioned that the f al1-blades are held in their adjusted position without the aid of any spring-catch or other contrivanee, although such may be used, if desired. It will be understood, however, that the construction of the head and other parts of my fan may be somewhat changed from that shown and described without departing from the spirit of myinvention. Hence I do not limit myself to the precise detail construction and arrangement of the parts.

I am aware that fan-bladeshave been formed with projecting arms provided with laterallyextending lugs movable in slots provided in arms formed upon a movable head and extending through said arms in a plane substantially parallel with the axes of the fan-blades; but such a construct-ion I do not herein wish to claim.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a fan, the combination of a rotating fan-shaft, fan-blades revolved by said shaft, projections or pins provided on the adjacent extremities of said fan-blades, and a movable head having openings extending therethrough in a plane at substantially right angles to the longitudinal axes of the blades for receiving said projections or pins, said openings having counter-sunk extremities, whereby cramping of the pin is prevented when said head is raised so that the said openings are above or below the axes of the fan-blades, substantiall y as and for the purpose set forth.

2. In a fan, the combination of a rotating fan-shaft, a bracket secured to said fan-shaft, fan-blades supported by said bracket and disposed in paralleI planes at one side of each other, projections or pins provided on the adjacent extremities of said fan-blades, a moving head guided in said bracket and having openings extending therethrough on opposite sides of a perpendicular to the fan-blade axes in planes at substantially right angles to said fan-blade axes for receiving said projections or pins, said openings having countersunk extremities, whereby cramping of the pins is prevented, and a rod connected to said head for operating the same, substantially as and for the purpose specified.

In testimony whereof I have hereunto signel my name, in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga andState of New York, this 26th day of December, 1889.

FREDERiCK XV. TUERK, JR.

Witnesses:

CLARK H. NORTON, M. BAXTER.

IOS 

